Separator screen



Dec; 14, 1926.

' 4 1,610,350. "METW. ANDERSON ET AL SEPARATOR S GREEN Filed April 28, 1926 MM w 1 INVENTORS V ATTORNEYS WITNESSES S,

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inventioniitelates to improvements separators and ds-specifically designed for the :purpose of separating small, inter-medlbodying' several novelconstructions one of the ;important ones- 0.1": :which :is theaalternate arrangement otlargeahdsmall longitudinal :p'pes and the :means by which the spaces betweenrpipescanibevaried.

@ther 'ohj elctsf and advantages will appear a in :the gfollowing x-specifioation, :reterenee e be mg had ito; 'the accompanymg draw ng in rwhich proveclzrseparator, e a I 1 iFigmre 2 :is an-{end elevation ofmheisepa- I ratoLZ o iFigur-e'fisis' adetail sectional view which may be uc'onsideredzast taken ;onz theiline jot-Figure T1, V

' ;F-igure*4=zis= a detail; ;plan 'v iewiofione the hoops .ashowing :the slot-swhy means of which the spacing-between "pipes can-he varied. a

it is the purpose ,ofvthe invention to pro- Yide ,arevolublez-screen or. drum into one; end otwhich considerable"quantities of fish may be dumped whereupon the fish are made :to

assemble in longitudinal positionsyas .o'they ultimately reach the periphery of the-drum and permitted to :drop through when they move :down to *spaoe'sof appropriate size.

" V I he:- so call'ediscreen or= drum is composed-of a fa: zplurality =of -=hoops 31. 1113011 theainteriorrof which rpipes z orb-rods '2: and I 3%are secured by meansof:U-holts-for clips 5463116. 5 :(Fig 3 a J :i'lzh'e pipes 'or rods 7211MB relatively large while: the, pipes-'onrods :3 are Telatively small. a

They rare distributed I in: alternation, thereby roughly defining' what, tmi'ghthey-termed .a

valleybetween the:largepipes 2Q The aIternatingiarrangement of large and 'small pipes causes the "fish "to assemble in longitudinal positions :when the periphery of the. drum "is reached,": an 'dy inasmuch as the pipes are spaced apart the -fish rare 1'thenpermitted :to drop through. Y p I Inior'der thatlas'sortment-zas to size may be had, the=sciieen lislmadefloitaslightly tapering formation toward the inlet end designated by the arrow A Figfl). This "is accomplished by making the, varioushoops "of H slightly smaller sizes.- Inasmuch as" the various pipes are evenlyspaced apart on the interior of each of the hoops it follows that the spacing between pipes .at the left end 7192s, maniacal-05,305.

t the main- ,Etligure ,1 will the s ightly less vthan pat :the :right end. y Elie small ,fish are thus permitted to drop athro'ugh ,iirs't, principally fiat theileft fend otfth-e screen; Fish of intermediate size will drop qthrough larger size-will fclischargeibothrfrom-the right end of the drum -,andl:thrcough the;-=la1;gest

spaceskbetweempipes,atthat'erid. l

- Adgust nent of; the :spaceslbetimeen" the pipes'may be had by virtueaof the SlOts (513. 1g. 4) "through which the :ends Qf the various clips 14; and 5-1eX-tentl. Q fEheserends of the cl ps are 5 threaded, and carry inuts {7.3501

the :obvious pur'pose 20f itightening 'thead justment'gwhenonoe *reaehedl Spac"ingb e,- I tween gp pes in'iay bevof any .3 dimensronmle sired; it 5 being. noted that the slots :16 pairfil fif considerable extent; {and {it ithe .ioregoing even spacing between pipes :isionsome rea Support for revoluble scredn had :by

son' required to be =varied some -;tl e -ad,jtist;-

ment may 'he -im adelto Ethan-Suit particular conditions; l Y- a s0 spiders foreachof thehoops. One ofithese is; shown in 11 i g-ure 2; andatd-etail oiftl e-cen.

tralzspider is shown idFigureS. The-spider '9 through which theisha'tt ;lO.ceXtends.'

I The shaft- -;may be :mount'efd sand -=driven$in I a any-suitable manner.v (Ehe extremity of head 11. The head is provided with flxzSilOl} 12' extending lengthwise thereof; and at right angles to the tXlSQ'Olf "the arm itself. l l e hoops 1-1 1GElGh phfave a'jrpair (of upstanding generall-yadesignated -8 is composed of ,-a 'iplu T rality -ofrradialgarms5 assembled pon aPhub 3 7 each spider arm is-enlargedglateral-ly int'oia V flanges 7 for theiidouble' 51311 1113089. xot' strengtheningthelhoops-andior proyidingra pl'aceltolwhich the radial .Q-arms" may be; se-

Cured. A bolt 14 (13 passesathrough one of theflanges 'and f through :the slot 12' V of the; adjacent rhea'd where it ,is secured in p t by w 1 1 gP'UFP "-Qf flt 12 =1n ;-addition'to'-that ginstzmentioned, is to p rm so s i h djustm fth 7 so that the arms $may;convenientl e a are s through the nearest spaced pipes 2 and 13, it F'bei-ng wrememberedrthat; the proizision rfor circumferential u'stment of thepipes will involve a slight variationfi'n' one direction or the other of thenearest space through which 'anarm '8 may pass. 7 j The operation is, readily understood. The e screen] or drum is preferably placed on a M slight inclineasshown inlligure 1with.th;e-

r the hoop at approximately even distances apart it follows that the spacing between pipes increases slightly toward the discharge end of the screen. This increase in the spacring serves the important function of preventing the fish from sticking in the spaces,

but as previously stated performs the ad ditional function of, assorting the fish as to size. -The smallest fish will drop through at the left extremity of the screen, the fish of intermediate size in the region ofthe center and the larger fish will discharge at the right end of the drum and also fall through the largest spaces adjacent to that end.

'It' is desirable and in tact necessary in a screen for the specific-purpose herein intended to cause, the fish to assemble in position longitudinally of the drum. The large pipes 2 accomplish the purpose. They produce u standin rid es causin the fish to,

C V o 'IIlOVB over lnto the valley therebetween and assume the desired longitudinal position in the spaces between the large and small pipes. The spacing between pipes may be'varied by use of the adjustment that the slots 6, clips 4 and nuts 7 afford. Any shifting in position of a pair ofthe pipes 2 and 3 concerned, will require a slight adjustment of the arm 8 so that the arm may still extend through the space between the two pipes. The bolt 14:, nut 15 and slot 12 in the head 11 of the arm provide for the necessary adjustment.

,l/Vhile the construction and arrangement of the improved fish separator is that of a generally preferred form, obviously modifications and changes may be madewithout departing from the spirit otthe invention or the scope oftheclaims. i

We claim LA cylindrical separator screen com- H posed of a plurality of spaced apart longitudinal elements of relatively large and small sizes in alternationj-and means for rotating the screen causing assemblingof fish in longitudinal position and permittingthe fish to drop through the spaces.

' 2. A separator screen of cylindricalrfor mation being composed of a plurality of longitudinally extending elements of alter natelylarge and small size in cylindrical order roughly defining longitudinal ridges and; intermediate valleyson'ithe interior of. the screen. v p g r p I I 3. A separator screen composed of a pluments and having the ends extending through the slots and carrying nuts permitting adjustment of the spaces between said elements. y V

i. A separator screen composed of a plurality of longitudinal elements consisting of relatively large and relatively small pipes occurring in alternation, hoops upon which the elements are assembled'cin cylindrical formation, sald hoops havlng-circumferentially extending slots, and means by which the elements are supported upon the hoops in spaced relationship comprislng clips ap-.,

plied to said elements and having the ends r extending through the slots and carrying nuts permitting adjustment of the spaces between said elements, spiders having radial arms supportmgthe hoops, and means by which the arms are secured to the hoops, said arms terminating in slotted heads through which said means passper'mitting. adjustment'of the arms as to position to agree with adjustments of the elements as to spacing.

5. A separator screen comprising a plurality of hoops of progressively different 7 diameters, .said hoops having peripheral flanges and circumferential slots, a plurality of longitudinal elements assembled 1ns1de of the hoops in cylindrical formation, said ele" ments alternately being of relatively large and small diameter; clips 'bywhich the elements are applied to the hoops "including threaded portions extending through the slots and receiving nuts for securing the clips and permitting adjustment asto spacing'bet-ween said elements, spidersrhavi'ng radial arms supporting the hoofpssaid'radial arms passing between certain elements and terminating in slotted ends applied to the flanges, andmeans Ipassing through the flanges and the slots of'said heads securing the parts in position butrpermitting slight adjustment of the'arms in relationship-to the hoops to compensate for adjustment of adjacent elements as to spacing.

,EMIL' w. ANDERSON. cuss ANDERSON; 

